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GATE CE: Fluid Mechanics Champion Quiz 1

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Question 1

The pressure in Pascal corresponding to 3 cm column of Mercury is

Question 2

Which property of mercury is the main reason for its use in barometers?

Question 3

Consider the following statements :
1) A small bubble of one fluid immersed in another fluid has a spherical shape.
2) The droplets of a fluid move upward or downward in another fluid due to unbalance between gravitational and buoyant forces.
3) Droplets of bubbles attached to a solid surface can remain stationary in a gravitational fluid if the surface tension exceeds buoyant forces.
4) Surface tension of a bubble is proportional to its radius while buoyant force is proportional to the cube of its radius.
Which of these statements are correct?

Question 4

What are the dimensions of kinematics viscosity of a fluid?

Question 5

The velocity field of an incompressible flow is given by where a₁ = 2 and c₃ = -4. The value of b₂ is ________

Question 6

Unlike the viscosity of liquids, the viscosity of gases increases with increasing temperature. This is due to ________.

Question 7

An incompressible fluid (kinematic viscosity, 7.4x 10^-7 m / s, specific gravity, 0.88) is held between two parallel plates. If the top late is moved with a velocity of 0.5 m/s while the bottom one is held stationary, the fluid attains a linear velocity profile in the gap of 0.5 mm between these plates; the shear stress in Pascals on the surface of top plate is

Question 8

A static fluid can have

Question 9

In case of a hydraulic ram, which among the following caters the function of behaving it as pumping device _________?

Question 10

The unit of the following property is not m²/s

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ESE & GATE CE Fluid Mechanics

Jun 23ESE & GATE CE